2C+Factoring

Nakkera Walker #19

Solve for x x^2+10x-75=0 (x-5)(x+15) x= -5 or x= -15
 * 23

In order to solve this you must find out how many x's are in the equation thus giving you (x )(x ) then you have to find out what two numbers added together equals 10, but at the same time when multiplied together equals -75. once you find that out your final product should look like this (x-5)(x+15) If you want to solve for x you have to find a number when multiplied by the numbers you found equals 0

Factoring:

ex #1: xˆ2-13x+12 Solution: (x-12) (x-1)

ex #2: xˆ2-3x-40 Solution: (x-8) (x+5)

ex #3: xˆ2-10x+24 Solution: (x-6) (x-4)

By: Kaloni Baylor Olivia Billborogh Arielle Reese

Naima Holland #10 FX-14 a. X2-49 =(X)2- (7)2 =(x+7) (x+7) b. 4x2-1 =(2x)2-(1)2 =(2x+1) (2x+1) c. x2y2-81z2 =(xy)2-(9z)2 =(xy+9z) (xy+9z) d. 2x3-8x =2x (x2-4) =2x ((x2)-(2)2) =2x(x+2) (x+2)

Problem Topic: Factoring. Notes: A Process of separating an equations/formula into its common parts.